Topic: Oval Pod Filter with Internal Molded Stack

[Seeparkfly]

I know I know, another pod post...

I have a 1976 CB750 F1 with Carpy's exhaust and want to try pods. I've narrowed it down to two kinds. Has anyone tried any of these?

Oval Pod with built in stack
http://www.vintagecb750.com/products/6/fuel-system/53/air-filters-vent-filters

Tapered silver and grey (there are a lot of sellers of these are they all the same quality?)
http://www.newmotorcycleparts.com/fuel_system_parts/air_filters/pod_air_filters.html

[lucky]

If they have a molded in velocity stack that is a better design and closer to the original.
The bike will still need slide needle repositioning and re jetting. Possible idle jet change also but check with others that have done the same mod and save yourself time and money.
You cannot just change the main jet only and expect for it to work correctly.
The main jet controls WOT and a little crossover from 3/4 throttle thats it.

With the Carpy's exhaust and pods I would lower the clip needle one notch.
Increase main jet size and if the idle is too high or it has any hesitation when giving it quick throttle then the idle jet may need to be increased.

The stock main jet was 105 , I would change that to a #115 or #120.
The needle clip position was 4th down from the top stock.
The idle jet was #40 ,I would change that to a #42 if the idle will not come down or it has hesitation when giving it throttle.
Do not baby the throttle when testing.
I would move that needle clip down to the 5th groove from the top if there is any hesitation at all.

The "F" model was very stingy on gas to start with.

You said, "CB750F1" . Most charts just have CB750k/F listed.

Another member of this forum "Bryce" has a 1975 and has a similar set up.
Talk to him.
I do not have records on other 1976 CB750F owners.

[Seeparkfly]

Still cant decide on which one. I like the look of the tapered and will probably go with them if the difference isnt that big. Dont know what that internal stack looks like..emailed but didnt get a straight answer or photo.

I was thinking 120s on the mains but will try 115s first. Great info on the needle clip position, hopefully it won't come down to that since I'm in San Francisco with no garage. I'll look Bryce up!

Cheers!

[Retro Rocket]

The one with the internal stack is far better than the other cheap emgo things, they should be burned...   Our bikes induction was designed as one including the stacks to smooth out air going into the engine therefore it makes sense that any pod with an inbuilt stack will be better and easier to tune...

[Geeto67]

The taipered silver and gray are EMGO pods. Avoid at all cost.

Doesn't cycle exchange have an oval filter setup that uses the stock airbox rubbers?

[Seeparkfly]

The one with the internal stack is far better than the other cheap emgo things, they should be burned...   Our bikes induction was designed as one including the stacks to smooth out air going into the engine therefore it makes sense that any pod with an inbuilt stack will be better and easier to tune...

That is really good to know. Better and easier to tune sounds like it's totally worth it. Just need to get these guys to return my emails (line is always busy). I ordered then immediately wanted to cancel but nothing. Days later I get a tracking number, no order confirmation, nothing. I did a google search and people are calling them crooks!?

Cycle-re-cycle part 2
http://www.newmotorcycleparts.com/fuel_system_parts/air_filters/pod_air_filters.html

[Seeparkfly]

The taipered silver and gray are EMGO pods. Avoid at all cost.

Doesn't cycle exchange have an oval filter setup that uses the stock airbox rubbers?

Hmm, don't know if they do but will check it out. Thanks for the lead.

Well, checked it out and found them http://www.cyclexchange.net/Filters%20Page.htm
Wish I could afford them but at $350..

[Geeto67]

you do know that pod filters are in no way a "performance enhancement" right? It's just looks (and a giant sucking sound).

I wouldn't buy from cycle re-cycle. Try dealing with someone reputable who specalizes in cb750s like cyclexchange.net.

if you are going to buy, make sure you get K&N brand or Unifilter brand.

[Seeparkfly]

you do know that pod filters are in no way a "performance enhancement" right? It's just looks (and a giant sucking sound).

I wouldn't buy from cycle re-cycle. Try dealing with someone reputable who specalizes in cb750s like cyclexchange.net.

if you are going to buy, make sure you get K&N brand or Unifilter brand.

Yep, at my level of mods, it's a cosmetic thing, but didn't know about the sucking sound. Really? I hope it's not louder than carpy's exhaust.

Yeah, cycle re-cycle no more. What a weird experience after I finally spoke to someone on the phone.

[Geeto67]

no it won't be louder than carpy's exhaust. You can just hear it over the stock pipes.

if you do look at cycle exchange - don't buy the $32 cheapie filters - they are emgos and emgo in the trash. I was actually shocked to see them and not K&N.

you posted these before:
http://www.vintagecb750.com/products/6/fuel-system/53/air-filters-vent-filters

send them an email and ask if they are K&N - if so, pull the trigger.

[dlhoulton]

Granuc, if you like the look/style of those $350 cyclexchange filter, you should check out Steeldragonperformance.com . For around $130 you can get something like the cyclexchange in a single filter or a set (two piece) filter. They have aluminum velocity stacks and rubber "O" rings for sealing.
dlhoulton